Process for producing thionylchlorid.



"unison s'rar as Pannier @FFKQEQ -EEEMANH RICN'KELER, Oh" LEVEEIHTSEN, NEAR COLOGNE, GERMANY, ASSIGNOR. TO SYN'JJHETIQ PATENTS 60., INCL, OF NEW YORK, N. Y., A COBPURA'IION OF NEW Patented Jan. 19 1915.

Application filed September 4,1913. I Serial E'o. 788,113;

YORK.

PROCESS FOR PRODUCING THION'YLCHLORID.

1 125 11 1 specification of Letters latent. 3% Drawing.

, To all whom it mag/concern Be it known that I, HERMANN-V. Kimmie,

'ploctor of philosophy, chemist, citizen of the Germain Empire, residing at Leverkuscn, near Cologne-on-the Rhine, Germany, have invented new and useful Improvements in Processes for Producing Thionylehlorid, of which the following is a Specification.

My invention concerns anew and vehiable process for producing thionylchlorial- My new process consists in treating sulfuric acid anhyclrid with sulfur dichloricl at a moderate temperature and in the pres ence of a suitable catelyzer such as antimony trichloricl, mercuric chlorid, etc. The process proceeds most probably in accordance with the following equation;

In order to illustrate my new proccssmore fully the following example is given, the parts being by weight: Into a mixture of 1000 parts or sulfur dichloricl and 10 parts of antimony trichlorid ShGl which mixture is in an iron vessel 778 parts of sulfuric acid anhydrid are introducediby distillation at a temperature of 10-15" C.- The reaction is complete after 10 hours. Thicnylchlorid thus obtained with a good yield is sepuratecl from the mixture by a free tional distillation.

I claim 2- 1. The process for producing thionylchloence of a small amount of a. metal chloridas catalyzer, substantially as described.

4%. The process of producing thionylchlorid; which comprises treating about778 parts of sulfuric acid anhyciricl with about 1000 parts of sulfur dichloridat a temperature of 10 to 15 C. in the presence of about 10 parts of antimony trichlorid ascatalyzer,

substantially as described.

In testimony whereoi I Witnesses.

r-inaniinn VON KELER. L 8.]-

Witnesses v ALBERT Nurse, Jumps Fesrnsn.

have hereunto set my hand in the'presenceof two subscribing 

